<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>select下拉表单</title>
</head>
<body>
    <h2>select中至少有一个option<br>在option中定义selected=“selected”时当前项默认选中</h2>
    <form action="">
        籍贯：
        <select name="" id="">
            <option value="">北京</option>
            <option value="">杭州</option>
            <option value="" selected="selected">江西</option>
            <option value="">赣州</option>
            <option value="">无锡</option>
            <option value="">外国</option>
        </select>
    </form>
</body>
</html>